import 'package:http/http.dart' as http;
import 'dart:convert';

class NotificationService {
  // استبدل هذا الرابط بالرابط الصحيح لملف PHP على السيرفر الخاص بك
  static const String _serverUrl =
      'https://syria.intaleq.xyz/intaleq/fcm/send_fcm.php';

  /// Sends a notification via your backend server.
  ///
  /// [target]: The device token or the topic name.
  /// [title]: The notification title.
  /// [body]: The notification body.
  /// [isTopic]: Set to true if the target is a topic, false if it's a device token.
  static Future<void> sendNotification({
    required String target,
    required String title,
    required String body,
    bool isTopic = false,
  }) async {
    try {
      final response = await http.post(
        Uri.parse(_serverUrl),
        headers: {
          'Content-Type': 'application/json; charset=UTF-8',
        },
        body: jsonEncode({
          'target': target,
          'title': title,
          'body': body,
          'isTopic': isTopic,
        }),
      );

      if (response.statusCode == 200) {
        print('Notification sent successfully.');
        print('Server Response: ${response.body}');
      } else {
        print(
            'Failed to send notification. Status code: ${response.statusCode}');
        print('Server Error: ${response.body}');
      }
    } catch (e) {
      print('An error occurred while sending notification: $e');
    }
  }
}

// --- Example of how to use it ---

// To send to a specific driver (using their token)
void sendToSpecificDriver() {
  String driverToken =
      'bk3RNwTe3H0:CI2k_HHwgIpoDKCI5oT...'; // The driver's FCM token
  NotificationService.sendNotification(
    target: driverToken,
    title: 'New Trip Request!',
    body: 'A passenger is waiting for you.',
    isTopic: false, // Important: this is a token
  );
}

// To send to all drivers (using a topic)
void sendToAllDrivers() {
  NotificationService.sendNotification(
    target: 'drivers', // The name of the topic
    title: 'Important Announcement',
    body: 'Please update your app to the latest version.',
    isTopic: true, // Important: this is a topic
  );
}